This computer can’t work ____ . It needs to be fixed.

A. gradually B. mostly C. usually D. normally

練習(xí)冊系列答案
相關(guān)習(xí)題

科目:初中英語 來源:2014-2015學(xué)年遼寧盤錦市九年級第三次模擬英語試卷(解析版) 題型:閱讀理解

If the only sports you do are dancing your fingers across your keyboard, you could be in serious danger of more than just becoming overweight and out of shape.

Do you often feel sleepy, like something is weighing down on your head? Do you feel forgetful? Do you sometimes feel uncomfortable up and down your neck and lower back, and you can’t explain why? Do you get sick often? It could be radiation(輻射) from your computer causing it. If you spend three hours or more a day in front of a computer, you are more easily harmful by the hazard(危險).

We have got so used to using computers that we often neglect(忽略) to think of them as dangerous sources of harmful radiation. A safe amount of radiation is 25V/m(Volts/meter). Do you want to guess how much our personal computers give off?

Keyboard: 1000 V/m

Mouse: 450 V/m

Monitor: 218 V/m

CPU: 170 V/m

Notebook computers: 2,500 V/m

Ways to Protect Yourself from Harmful Computer Radiation

1. Decorate your desk with cactus(仙人掌) plants, they take in radiation.

2. Drink two or three cups of green tea a day and eat an orange daily. The vitamins in tea leaves and oranges protect us from radiation and keep our eyes healthy as well.

3. Use a screen filter(過濾器) for your monitor.

4. Avoid having metal objects nearby on your desk.

5. Put the back of the computer to the wall. Most of the radiation comes off the back.

6. Keep your monitor at least 50 cm away from your face.

7. Keep your computer rooms ventilated(空氣流通的).

8. Eat healthily---especially fruits and vegetables.

9. Don’t fall asleep on your computer. Turn it off if you have to rest nearby.

The ways above are useful, why not have a try at once?

Ways to reduce1.____________________

Symptom(癥狀) affected by computers

Feeling sleepy, forgetful and 2.___________

A safe amount of radiation

3.___________________

The radiation a mouse gives off

4.___________________

There are 5._________ ways to protect yourself from harmful computer radiation.

查看答案和解析>>

科目:初中英語 來源:2014-2015學(xué)年遼寧盤錦市九年級第二次模擬英語試卷(解析版) 題型:單項填空

— What are you looking for? —I’m looking for the book _____ you lent me yesterday。 A.what B.who C.when D./

查看答案和解析>>

科目:初中英語 來源:2014-2015學(xué)年江西省中考模擬英語試卷(解析版) 題型:閱讀理解

Jenny didn't know how her school dance team could pay for the travel to Florida for a national competition. It was difficult enough just to raise money for their dance costumes (服裝). What were they going to do? As the team leader, Jenny felt she needed to come up with an idea. .

At lunch, Jenny found that a lot of students were throwing empty juice bottles in the rubbish. She remembered the school had a recycling (回收利用) program a few years ago, but it had ended. Nobody wanted to bring the bags of bottles to the recycling center.

Jenny saw a chance. She went to see the headmaster. "If members of our team pick up the recyclable bottles every few days, may we use the money we collect at the recycling center for our dance team?" asked Jenny.

"I think that's a great idea, Jenny," said Ms. Weaver. "But if another team wants to take over next season, I'll have to give them a chance, too. " Jenny agreed that it was fair. She ran to the dance team to give them the good news.

Jenny knew that the money raised from empty bottles might not be enough to get them all the way to Florida, but they were a lot closer. She would find more ways to raise money for the dance team.

1.Jenny's team would go to Florida .

A. to raise money

B. to have a trip there

C. to take part in a competition

D. to buy their dance costumes.

2.If Jenny wanted to collect money by picking up bottles, she needed the support of first.

A. the headmaster B. the dance team

C. another team D. the recycling center

3.which of the following is TRUE?

A. Jenny found many ways to raise money.

B. Jenny could collect money at the recycling center.

C. The team could not pay for the train tickets to Florida.

D. Jenny collected enough money from the empty bottles.

4.What's the best title for this passage?

A. The ways to raise money. B. The recycling bottles.

C. The dance team's costumes. D. A closer dreaming.

查看答案和解析>>

科目:初中英語 來源:2014-2015學(xué)年江西省中考模擬英語試卷(解析版) 題型:單項填空

--Have you phoned your brother?

--Yes. He ____ to be back next week.

A. expects B. is expected

C. will expect D. is expecting

查看答案和解析>>

科目:初中英語 來源:2014-2015學(xué)年江蘇蘇州市九年級二?荚囉⒄Z試卷(解析版) 題型:閱讀理解

Most people agree that honesty is a good thing. But does Mother Nature agree? Animals can't talk, but can they lie in other ways? Can they lie with their bodies and behavior? Animal experts may not call it lying, but they do agree that many animals, from birds to chimpanzees, behave dishonestly to fool other animals. Why? Dishonesty often helps them survive.

Many kinds of birds are very successful at fooling other animals. For example, a bird called the plover sometimes pretends to be hurt in order to protect its young. When a predator(獵食動物)gets close to its nest, the plover leads the predator away from the nest. How? It pretends to have a broken wing. The predator follows the "hurt" adult, leaving the baby birds safe in the nest.

Another kind of bird, the scrub jay, buries its food so it always has something to eat. Scrub jays are also thieves. They watch where others bury their food and steal it. But clever scrub jays seem to know when a thief is watching them. So they go back later, unbury the food, and bury it again somewhere else.

Birds called cuckoos have found a way to have babies without doing much work. How? They don't make nests. Instead, they get into other birds' nests secretly. Then they lay their eggs and fly away. When the baby birds come out, their adoptive parents feed them.

Chimpanzees, or chimps, can also be sneaky. After a fight, the losing chimp will give its hand to the other. When the winning chimp puts out its hand, too, the chimps are friendly again. But an animal expert once saw a losing chimp take the winner's hand and start fighting again.

Chimps are sneaky in other ways, too. When chimps find food that they love, such as bananas, it is natural for them to cry out. Then other chimps come running. But some clever chimps learn to cry very softly when they find food. That way, other chimps don't hear them, and they don't need to share their food.

As children, many of us learn the saying "You can't fool Mother Nature." But maybe you can't trust her, either.

1. A plover protects its young from a predator by___________.

A. getting closer to its young

B. driving away the adult predator

C. leaving its young in another nest

D. pretending to be injured

2. By "Chimpanzees, or chimps, can also be sneaky" (paragraph 5), the author means_______.

A. chimps are ready to attack others

B. chimps are sometimes dishonest

C. chimps are jealous of the winners

D. chimps can be selfish too

3. Which of the following is true according to the passage?

A. Some chimps lower their cry to keep food away from others.

B. The losing chimp won the fight by taking the winner's hand.

C. Cuckoos fool their adoptive parents by making no nests.

D. Some clever scrub jays often steal their food back.

4. Which of the following might be the best title of the passage?

A. Do animals lie?

B. Does Mother Nature fool animals?

C. How do animals learn to lie?

D. How does honesty help animals survive?

查看答案和解析>>

科目:初中英語 來源:2014-2015學(xué)年江蘇蘇州市九年級二?荚囉⒄Z試卷(解析版) 題型:單項填空

The number of children who have lost parents to AIDS ___ to rise to over 26 million in 2017.

A. are expected B. is expecting

C. are expecting D. expected

查看答案和解析>>

科目:初中英語 來源:2014-2015學(xué)年江蘇省南京市江寧區(qū)中考二模英語試卷(解析版) 題型:單詞拼寫

根據(jù)句子意思,用括號中所給單詞的適當(dāng)形式填空,并將答案填寫在答卷紙標號為46-50的相應(yīng)位置上。

1.The story happened about two (century) ago.

2.Besides the funny actors in the film, the story (it) is really interesting.

3.In China, the number “eight” is thought to be a (luck) number by many people.

4.We can make a big difference to the earth by (do) small changes.

5.The elephant is seriously ill. It is (die).

查看答案和解析>>

科目:初中英語 來源:2014-2015學(xué)年江蘇南京市秦淮區(qū)中考二模英語試卷(解析版) 題型:單項填空

Everyone lent a hand so that the work ______ a week earlier than I had planned.

A. finishes B. has finished

C. is finished D. was finished

查看答案和解析>>

同步練習(xí)冊答案